Preheat oven to 400F.In large skillet hat 2 Tbsp. oil over medium-high heat. Add mushrooms; cook stirring occasionally until they release their liquid and begin to turn golden; about 10 minutes. Add garlic and thyme; saute one minute. Season generously with salt and pepper. Add sherry; cook, stirring until almost evaporated. Remove from heat and swirl butter.While mushrooms are cooking, brush baguette with left over oil (I used 1 Tbsp. olive oil here); arrange on baking sheet and bake until they begin to crisp, about 6 minutes and let cool.Spread goat cheese on toast; top with mushroom mixture and serve.